Electrical Engineering (EE) Exam  >  Electrical Engineering (EE) Tests  >  Basic Electrical Technology  >  Test: Factors Determining The Inductance Of A Coil - Electrical Engineering (EE) MCQ

Test: Factors Determining The Inductance Of A Coil - Electrical Engineering (EE) MCQ


Test Description

10 Questions MCQ Test Basic Electrical Technology - Test: Factors Determining The Inductance Of A Coil

Test: Factors Determining The Inductance Of A Coil for Electrical Engineering (EE) 2024 is part of Basic Electrical Technology preparation. The Test: Factors Determining The Inductance Of A Coil questions and answers have been prepared according to the Electrical Engineering (EE) exam syllabus.The Test: Factors Determining The Inductance Of A Coil MCQs are made for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Factors Determining The Inductance Of A Coil below.
Solutions of Test: Factors Determining The Inductance Of A Coil questions in English are available as part of our Basic Electrical Technology for Electrical Engineering (EE) & Test: Factors Determining The Inductance Of A Coil solutions in Hindi for Basic Electrical Technology course. Download more important topics, notes, lectures and mock test series for Electrical Engineering (EE) Exam by signing up for free. Attempt Test: Factors Determining The Inductance Of A Coil | 10 questions in 10 minutes | Mock test for Electrical Engineering (EE) preparation | Free important questions MCQ to study Basic Electrical Technology for Electrical Engineering (EE) Exam | Download free PDF with solutions
Test: Factors Determining The Inductance Of A Coil - Question 1

As the number of turns in the coil increases, what happens to the inductance of the coil?

Detailed Solution for Test: Factors Determining The Inductance Of A Coil - Question 1

Inductance is directly proportional to the square of the number of turns in the coil, hence as the number of turns increases, inductance also increases.

Test: Factors Determining The Inductance Of A Coil - Question 2

What happens to the inductance when the magnetic field strength decreases?

Detailed Solution for Test: Factors Determining The Inductance Of A Coil - Question 2

Inductance is directly proportional to the magnetic field strength in the coil, hence as the magnetic field strength increases, inductance decreases.

1 Crore+ students have signed up on EduRev. Have you? Download the App
Test: Factors Determining The Inductance Of A Coil - Question 3

What happens to the inductance when the current in the coil becomes double its original value?

Detailed Solution for Test: Factors Determining The Inductance Of A Coil - Question 3

The formula for magnetic field strength in a coil is:
H=iN/l
The inductance is: directly proportional to magnetic field strength, hence as the current value doubles, the inductance also doubles.

Test: Factors Determining The Inductance Of A Coil - Question 4

When the coil is wrapped around a ferromagnetic core, why is it difficult to determine the inductance?

Detailed Solution for Test: Factors Determining The Inductance Of A Coil - Question 4

 When a coil is wrapped around a ferromagnetic core, it is difficult to determine the inductance because the variation of flux is no longer proportional to the variation of current.

Test: Factors Determining The Inductance Of A Coil - Question 5

 What happens to the inductance as the area of cross section of the coil increases?

Detailed Solution for Test: Factors Determining The Inductance Of A Coil - Question 5

The formula for inductance is:
L=4*pi*10-7*A*N2/l, hence as the area of cross section A increases, the inductance also increases.

Test: Factors Determining The Inductance Of A Coil - Question 6

What happens to the inductance as the length of the magnetic circuit increases?

Detailed Solution for Test: Factors Determining The Inductance Of A Coil - Question 6

The formula for inductance is:
L=4*pi*10-7*A*N2/l, hence as the length of the magnetic circuit l increases, the inductance decreases.

Test: Factors Determining The Inductance Of A Coil - Question 7

Among the following, which is the right formula for inductance?

Detailed Solution for Test: Factors Determining The Inductance Of A Coil - Question 7

The average emf induced is proportional to the current per unit time, the constant of proportionality being L. Hence emf=LI/t. Making L the subject of the formula, we get: L=emf*t/I.

Test: Factors Determining The Inductance Of A Coil - Question 8

The unit for inductance is ___________

Detailed Solution for Test: Factors Determining The Inductance Of A Coil - Question 8

The unit of induction is named after a famous scientist Joseph Henry who independently discovered electromagnetic induction.

Test: Factors Determining The Inductance Of A Coil - Question 9

For a coil having a magnetic circuit of constant reluctance, the flux is ___________ to the current.

Detailed Solution for Test: Factors Determining The Inductance Of A Coil - Question 9

For a coil having a magnetic circuit of constant reluctance, the flux is directly proportional to the current.

Test: Factors Determining The Inductance Of A Coil - Question 10

What is the unit for inductive reactance?

Detailed Solution for Test: Factors Determining The Inductance Of A Coil - Question 10

Inductive reactance is nothing but the impedance. Impedance is the AC equivalent of resistance, hence the unit for inductive reactance is ohm.

57 docs|62 tests
Information about Test: Factors Determining The Inductance Of A Coil Page
In this test you can find the Exam questions for Test: Factors Determining The Inductance Of A Coil solved & explained in the simplest way possible. Besides giving Questions and answers for Test: Factors Determining The Inductance Of A Coil, EduRev gives you an ample number of Online tests for practice

Top Courses for Electrical Engineering (EE)

Download as PDF

Top Courses for Electrical Engineering (EE)